Aeroplane



A. CARTWRIGHT.

AEROPLANE.

APPLICATION FILED JAN. 22, 1919.

Patented Feb. 3, 1920.

WW" e 00 6] Hound s ANDREW CARTWRIGHT, or BLANKET, TEXAS.

AEROPLANE.

Specification of Letters Patent.

Patented Feb. 3, 1920.

' Application filed January 22, 1919. Serial No. 272,501.

To all whom it may concern:

Be it known that 1, ANDREW OARTIVRIGI'IT, a citizen of the UnitedStates, residing at Blanket, in the county of Brown and State of Texas,have invented a new and useful Aeroplane, of which the following is aspecification.

This invention relates to aeroplanes, one of its objects being toprovide means whereby the machine can leave the ground at an abruptangle, thereby to facilitate starting in wooded localities or whereverthere are obstructions that would prevent the ascent of a machine of theordinary construction.

A further object is to provide a machine having a jointed body under thecontrol of the aviator, there being a supplemental propeller for use indirecting the machine in its abrupt ascent. 4

W'ith the foregoing and other objects in view which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts which will be hereinafter morefully described and pointed out in the claim, it being understood thatvarious changes may be made in the construction and arrangement of theparts without departing from the spirit or sacrificing any of theadvantages of the invention as set forth in the appended claim.

In the accompanying drawing, which is a side elevation of the aeroplane,the preferred form of the invention has been shown, the arrangement ofthe parts relative to each other when the machine is to make an abruptascent, being indicated by dotted lines.

Referring to the figures by characters of reference, 1 designates thefront portion of the body of the machine, designed to contain theaviator, the engine and the controlling mechanism. The usual propeller 2is located at the nose of the body and the sustaining places 3 areconnected to the section 1, as shown. Running gear 1 is secured to andextends under the section 1 and inclined downwardly and rearwardly fromthe bottom of section 1 is a sleeve suitably braced, as at 6, and havinga shaft 7 journaled therein. A supplemental propeller 8 is secured tothe lower end of the shaft 7 while the upper end thereof is connected,by a universal joint 9, to the drive shaft 10 of the engine 11.

Hingedly connected to the rear end of the section 1 is the rear section12 of the body, the point of connection being indicated at 13. This rearsection carries the tail planes 1% and rudder 15 and also the supportingrunner 16.

A lever 17 is pivotally mounted in the rear portion of section 1 and isconnected at its upper end to a link 18 attached to the upper portion ofthe section 12. link 19 connects the lever 17 to an operating lever 20located where it can be reached readily by the aviator and a toothedsegment 2-1 and locking dog 22 are provided for holding the lever andother parts in any positions to which they may be adjusted.

When it is desired to make an abrupt ascent the aviator starts thepropellers and then shifts the lever 20 so as to change the an lebetween the front and rear sections of the body as indipated by dottedlines. The propeller.v 8 exerts an upward thrust upon the machine andassists the propeller 2 both in pulling the machine forward and inelevating it; The propeller 8 need only be used when the abrupt ascentis being made. By making the body jointed as shown, the short landing ofthe machine can be effected.

W hat is claimed is An aeroplane including a body having front and rearsections hingedly connected at the bottom, sustaining blades connectedto the front section, a propeller carried by and in front of saidsection, a motor carried by the front section, a downwardly andrearwardly inclined propeller shaft carried by the front section andextending therebelow, a propeller on said inclined shaft and supportedclose to the bottom of the front section adjacent the jointed endthereof, a

tail plane upon the rear section, a lever fulcrumed on the frontsection, a link connected between said lever and the rear section, meansfor shifting the lever to change the relative angular positions of thesections, and means for locking said sections in any position to whichthey may be adjusted angu'larly.

In testimony that I claim the foregoing as my own I h ve hereto aflixedmy signature in the presence of two witnesses.

ANDREW CARTWRIGHT.

Witnesses W. J BOLER, OAK LEWIS.

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